scholarly journals Propagation of Rhododendron chapmanii by Stem Cuttings

1985 ◽  
Vol 3 (2) ◽  
pp. 65-68
Author(s):  
William H. Gensel ◽  
Frank A. Blazich
Keyword(s):  
Native Plants ◽  
Stem Cuttings ◽  
Indolebutyric Acid ◽  
Distinct Root

Two experiments were conducted to determine the feasibility of propagating Chapman's rhododendron (Rhododendron chapmanii A. Gray) by rooting stem cuttings. In the first experiment, semi-hardwood terminal cuttings taken from native plants, rooted in moderate percentages (43 to 63%) with the percentage of commercially acceptable cuttings (cuttings having a distinct root ball) being less (22 to 53%). The second experiment used hardwood terminal and subterminal cuttings taken from containerized stock plants that originated from cuttings rooted in the first experiment. Percent rooting for total and commercially acceptable cuttings ranged from 81 to 94% and 39 to 64%, respectively. For both experiments, indolebutyric acid (IBA) treatments resulted in an increase in the percentage of commercially acceptable cuttings.

scholarly journals Propagation of Twelve Alaska Native Plants by Summer Stem Cuttings

2009 ◽  
Vol 27 (4) ◽  
pp. 207-210
Author(s):  
Patricia S. Holloway ◽  
Mia R. Peterburs
Keyword(s):  
Alaska Native ◽  
Native Plants ◽  
Stem Cuttings ◽  
Populus Balsamifera ◽  
Alnus Viridis ◽  
Dwarf Birch ◽  
Labrador Tea ◽  
Bottom Heat ◽  
Salix Bebbiana ◽  
Collection Date

Abstract Twelve Alaska native plants were propagated from softwood and semi-hardwood stem cuttings collected from late June through August. Cuttings of new growth were treated with 0.3% indole-3-butyric acid powder and propagated in horticultural grade perlite and vermiculite (1:1 by vol) under intermittent mist with bottom heat [26C (79F)] in a greenhouse with a minimum night temperature of 15C (59F). After 6 weeks, cuttings were harvested and evaluated for rooting percentage and root quantity. Four species rooted poorly (< 25%) regardless of collection date: Siberian alder (Alnus viridis ssp. fruticosa), silverberry (Elaeagnus commutata), Bebb willow (Salix bebbiana) and shrub birch (Betula glandulosa). Best rooting (> 80%) occurred June 20 for: Beauverd spiraea (Spiraea stevenii), sweetgale (Myrica gale), and thinleaf alder (Alnus incana ssp. tenuifolia). Peak rooting for dwarf birch (Betula nana), feltleaf willow (Salix alaxensis), balsam poplar (Populus balsamifera), Labrador tea (Ledum groenlandicum) and littletree willow (Salix arbusculoides) was early to mid July. During peak rooting times, all successful species developed adequate root quantities for survival following transplanting.

scholarly journals Improving Early Field Growth of Leyland Cypress Liners by Grading and Potting

2008 ◽  
Vol 26 (1) ◽  
pp. 35-38
Author(s):  
L. Eric Hinesley ◽  
Frank A. Blazich
Keyword(s):  
Height Growth ◽  
Stem Diameter ◽  
Stem Cuttings ◽  
Initial Size ◽  
Distinct Root ◽  
Field Growth

Abstract Stem cuttings of Leyland cypress [Callitropsis × leylandii (A. B. Jacks. & Dallim.) D. P. Little; syn. × Cupressocyparis leylandii (A. B. Jacks. & Dallim.) Dallim. & A. B. Jacks.] were rooted beginning May 2004. In February 2005, liners were sorted into four grades [1 = firm root ball, top to bottom, 2 = good root ball, but loose in the upper one-third; 3 = no distinct root ball, but with enough roots to survive when potted and grown in irrigated containers; and 4 = roots ≤ 2 cm (0.8 in) in length (discarded)]. Liners from Grades 1 and 2 were transplanted to the field April 2005. Additional liners of Grades 1, 2, and 3 were grown in 3.8-liter (1-gal) containers in a nursery during 2005, and field planted early September 2005. Height and stem diameter were recorded after 1 and 2 years. Containerizing affected stem diameter more than height. Growth during the first 2 years was proportional to initial size, indicating the benefits of grading. After 2 years, the largest plants were Grade 1 liners that went directly to the field April 2005, with no intermediate potting.

scholarly journals The Propagation of Guavas from Stem Cuttings

1969 ◽  
Vol 47 (4) ◽  
pp. 280-289
Author(s):  
W. Pennock ◽  
G. Maldonado
Keyword(s):  
Acid Treatment ◽  
Coarse Sand ◽  
Appreciable Effect ◽  
Stem Cuttings ◽  
High Susceptibility ◽  
High Concentration ◽  
Indolebutyric Acid ◽  
Anthracnose Disease ◽  
Rooting Media ◽  
Fine Gravel

1. A highly successful propagation method is described by which hundreds of side-sprouts are first induced on the parent guava tree. These are later cut and rooted under alternatmg mist, with leaves attached. By using this method it is possible to produce from 500 to 1,000 guava plants from a single 3-year-old tree within 10 months. 2. An experiment is also described and discussed which showed that different rooting media, such as coarse sand and very fine gravel, with Coco-peat, fir bark, Vermiculite, Perlite, and Mexifern, had no appreciable effect on rooting. But treatment with a relatively high concentration, 200 p.p.m., of indolebutyric acid improved and accelerated rooting markedly. Rooting was still further improved if 2 percent of sugar was combined with the indolebutyric acid treatment. 3. The high susceptibility of cuttings under mist to anthracnose disease is mentioned and the usual course of the disease described. Recommendations are suggested for reducing the incidence of this disease.

scholarly journals Acclimation of croton and hibiscus seedlings in response to the application of indobultiric acid and humic acid for rooting

Revista CERES ◽  
2015 ◽  
Vol 62 (3) ◽  
pp. 284-293 ◽  
Author(s):  
Lílian Estrela Borges Baldotto ◽  
Marihus Altoé Baldotto ◽  
Matheus Pereira Simões ◽  
Reges Rodrigues de Oliveira ◽  
Hermínia Emília Prieto Martinez ◽  
...  
Keyword(s):  
Organic Matter ◽  
Humic Acid ◽  
Ornamental Plants ◽  
Growth Characteristics ◽  
Similar Response ◽  
Physiological Effects ◽  
Stem Cuttings ◽  
Indolebutyric Acid ◽  
Plastic Bags ◽  
Bioactive Fraction

The vegetative propagation of ornamental plants can be accelerated by applying plant growth regulators. Amongst them, the use of auxins, plant hormones with physiological effects on cell elongation and rooting have stood out. Alternatively, the application of humic acids, bioactive fraction of soil organic matter, also results in increases in rooting cuttings of ornamental plants. The objective of this work was to study the growth characteristics and the nutritional contents of croton and hibiscus plants during acclimation of seedlings in response to different concentrations of indolebutyric acid (IBA) and humic acid (HA) applied to cuttings for rooting. The experiment was conducted in greenhouse, and the apical stem cuttings were treated with solutions with concentrations of 0, 250, 500, 1000 and 2000 mg L-1of IBA and 0, 10, 20, 30 and 40 mg L-1 of C from HA. At 45 days of rooting in carbonized rice husk, they were individually transferred to plastic bags of 2.0 dm3 containing a mixture of soil: sand: manure (2: 1: 1) as substrate. At 90 days of acclimation, the plants were collected for measurement of growth and nutritional variables. The results showed that the application of the IBA stimulates the absorption of nutrients and growth of croton cuttings and transplanted hibiscus, contributing to formation of vigorous seedlings. A similar response occurred with the application of HA in hibiscus cuttings

scholarly journals Rooting Softwood Cuttings of Leyland Cypress Outdoors Under Shade

2006 ◽  
Vol 24 (3) ◽  
pp. 124-128
Author(s):  
L. Eric Hinesley ◽  
Frank A. Blazich ◽  
Scott A. Derby
Keyword(s):  
Controlled Release ◽  
Stem Cuttings ◽  
Root Mass ◽  
Indolebutyric Acid ◽  
Rooted Cuttings ◽  
Controlled Release Fertilizer ◽  
Auxin Concentration ◽  
Additional Improvement ◽  
Substrate Fertility

Abstract Stem cuttings of Leyland cypress [x Cupressocyparis leylandii (A.B. Jacks. & Dallim.) Dallim. & A.B. Jacks], were rooted to determine the effect of A) date of collection, rooting substrate, and mist frequency, B) auxin formulation and concentration, C) rooting substrate, D) substrate fertility, and E) type of cutting and auxin concentration. Results were best for misting intervals of 5 to 7 min during the day, but 10 min was also adequate. Rooting was comparable for softwood cuttings collected in late May or late June. Powder and liquid auxin formulations, which both contained indolebutyric acid (IBA), yielded similar results. Cuttings that were more lignified (light tan color) at the bases benefited the most from higher concentrations [≈ 8000 ppm (0.8%)] of IBA in talc, whereas less mature cuttings (green at the bases) rooted in highest percentages with lower concentrations [≈ 3000 ppm (0.3%)]. Rooting was similar in substrates with a peat:perlite ratio (v/v) of 1:1, 1:2, or 1:4, whereas results were less satisfactory in 100% perlite. Controlled release fertilizer [1.8 kg/m3 (4 lb/yd3)] in the rooting substrate did not affect rooting percent, but greatly increased root mass and quality of rooted cuttings. Doubling the rate resulted in little additional improvement. Rooting was comparable for vigorous side shoots (1st-order laterals) and tips from vigorous upright branches (primary axes) of similar maturity.

scholarly journals Propagation of Castanopsis sclerophylla by Stem Cuttings

2003 ◽  
Vol 21 (2) ◽  
pp. 61-63
Author(s):  
Peter J. Conden ◽  
Frank A. Blazich
Keyword(s):  
Isopropyl Alcohol ◽  
Free Acid ◽  
Growth Stages ◽  
Distilled Water ◽  
Stem Cuttings ◽  
Indolebutyric Acid ◽  
Overwinter Survival

Abstract Two experiments were conducted to develop a protocol for propagation of Castanopsis sclerophylla (Lindley & Paxton) Schottky by stem cuttings. In the first experiment completed in 2000, stem cuttings were taken on three dates representing three growth stages (softwood, semi-hardwood, or hardwood). Semi-hardwood and hardwood cuttings were treated with 0, 2500 (0.25%), 5000 (0.5%), 7500 (0.75%), or 10,000 (1.0%) ppm of the free acid of indolebutyric acid (IBA) dissolved in 50% isopropyl alcohol, whereas softwood cuttings were treated with the same concentrations of the potassium (K) salt of IBA (K-IBA) dissolved in distilled water. Cuttings were placed in a raised greenhouse bench and rooted under intermittent mist. Cuttings taken at the semi-hardwood and hardwood stages began to drop their leaves after approximately 2 weeks and the majority eventually died, with negligible rooting of surviving cuttings. The response of the softwood cuttings to K-IBA was quadratic with the greatest rooting (63%) at 7500 ppm K-IBA. Seventy softwood cuttings that rooted were potted for observance of overwinter survival. Of these, 90% produced a flush of growth during the summer, with 80% overwinter survival. In the second experiment conducted in 2001, semi-hardwood cuttings were taken and treated with 0, 2500 (0.25%), 5000 (0.5%), 7500 (0.75%), or 10,000 (1.0%) ppm K-IBA and placed in a raised greenhouse bench with intermittent mist for rooting as in the first experiment. Results were similar to the semi-hardwood cuttings treated in the first experiment with the free acid of IBA, indicating semi-hardwood cuttings do not root and that the auxin and/or isopropyl alcohol were not toxic to the cuttings.

scholarly journals Kosteletzkya virginica Can be Rooted from Leafy or Leafless Stem Cuttings

2004 ◽  
Vol 22 (4) ◽  
pp. 173-175
Author(s):  
Cynthia L. Haynes ◽  
William R. Graves
Keyword(s):  
Stem Cuttings ◽  
Indolebutyric Acid ◽  
Single Leaf ◽  
Primary Roots ◽  
Kosteletzkya Virginica ◽  
Herbaceous Perennial

Abstract Protocols for producing Virginia mallow [Kosteletzkya virginica (L.) K. Presl. ex A. Gray] are needed to allow growers to meet the emerging demand for this herbaceous perennial. Virginia mallow has been propagated from seeds and by division, but the potential for using stem cuttings has not been evaluated. Two experiments were conducted to determine how indolebutyric acid (IBA) treatment affects rooting percentage and the number and length of primary roots on stem cuttings taken from different positions on stock plants. Rooting percentage was similar (mean = 68%) among single-leaf cuttings from nonterminal, distal positions on stock plants and leafless cuttings from basal positions. Averaged over these nonterminal cutting types, IBA treatment more than doubled rooting percentage, root count, and the length of the longest root. Terminal cuttings with leaves rooted more successfully (83%) than subtending cuttings with leaves during a second experiment, and IBA effects were less pronounced than during the first experiment. Results demonstrate that stem cuttings with or without leaves can be used to propagate Virginia mallow efficiently. Application of IBA is not necessary but enhances rooting and appears most beneficial for leafless cuttings.

scholarly journals Shading and IBA Treatment Do Not Improve Rooting of Stem Cuttings of Quercus phillyraeoides ‘Emerald Sentinel’

1999 ◽  
Vol 17 (3) ◽  
pp. 123-125
Author(s):  
Jason J. Griffin ◽  
Frank A. Blazich ◽  
Thomas G. Ranney
Keyword(s):  
Solar Irradiance ◽  
Root Length ◽  
Growth Stage ◽  
Shoot Tip ◽  
Stem Cuttings ◽  
Root Number ◽  
Indolebutyric Acid ◽  
Rooted Cutting ◽  
Quercus Phillyraeoides

Abstract Shoot tip cuttings of Quercus phillyraeoides A. Gray ‘Emerald Sentinel’ (‘Emerald Sentinel’ oak), in a transitional growth stage between softwood and semi-hardwood, were collected from containerized plants growing under uniform fertility on June 4, 1998. Cuttings were treated with talc formulations of indolebutyric acid (IBA), ranging from 0 to 8000 ppm (0.8%), and placed under intermittent mist with shade levels excluding 0%, 30%, 60% or 90% of full solar irradiance. After 14 weeks, percent rooting averaged 18% and was unaffected by either IBA concentration or shading regime. Similarly, both mean root number per rooted cutting and mean root length were unaffected by IBA concentration or shading. Roots per rooted cutting and mean root length averaged 2.6 and 41 mm (1.6 in), respectively. Results suggest that shading stem cuttings of ‘Emerald Sentinel’ during propagation does not affect rooting.

scholarly journals Effect of indolebutyric acid on root induction of stem cuttings with Codiaeum variegatum (Euphorbiaceae) bud

Manglar ◽  
2020 ◽  
Vol 17 (2) ◽  
pp. 177-181
Author(s):  
Segundo López-Medina ◽  
José Mostacero-León ◽  
Angélica López-Zavaleta ◽  
Armando Gil- Rivero ◽  
Anthony J. De La Cruz-Castillo
Keyword(s):  
Root Induction ◽  
Stem Cuttings ◽  
Indolebutyric Acid ◽  
Codiaeum Variegatum

scholarly journals Propagation of Ilex vomitoria ‘Dare County’ by Stem Cuttings

2012 ◽  
Vol 30 (2) ◽  
pp. 55-57 ◽  
Author(s):  
Christopher R. Lambert ◽  
Frank A. Blazich ◽  
Anthony V. LeBude
Keyword(s):  
Stem Cuttings ◽  
Indolebutyric Acid ◽  
Auxin Treatment ◽  
Linear Decrease ◽  
Ilex Vomitoria

Semi-hardwood or hardwood stem cuttings of Ilex vomitoria Sol. ex Ait. ‘Dare County’ [‘Dare County’ yaupon holly (syn. ‘Virginia Dare’ yaupon holly)] were treated with solutions of the potassium (K) salt (K-salt) of indolebutyric acid (K-IBA) at 0 to 8000 mg liter−1 (ppm). Nontreated semi-hardwood cuttings rooted at 78% whereas, regardless of auxin treatment, hardwood cuttings taken on two dates rooted at 15%. Treatment of cuttings with K-IBA was generally ineffective and resulted in a linear decrease (P ≤ 0.05) in percent rooting of semi-hardwood cuttings.

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